WRITE DOWN YOUR ANSWERS CLEARLY! Although vacuum tubes are no longer commonly us
ID: 1797930 • Letter: W
Question
WRITE DOWN YOUR ANSWERS CLEARLY!
Although vacuum tubes are no longer commonly used in computer or consumer electronics, they still have a substantial niche in high-end audio, high-power radio transmitters, particle accelerators, and microwave ovens A vacuum diode, the simplest vacuum tube, is an interesting two terminal device. A vacuum diode's voltage-current characteristic is closely approximated by the Childs - Langmuir Law, with one parameter P called the perveance. A 6als twin diode has P 2.0mA/v3/2/. what is the current Ip (in Amperes) for a bias voltage of VPK = 4.0v what is the incremental resistance (in Ohms) for the bias voltage of VPK = 4.0v? What is the current IP (in Amperes) for a bias voltage of VPK = 10.0v? What is the incremental resistance (in Ohms) for the bias voltage of VPK = 10.0v?Explanation / Answer
a) Simple. Put vpk=4 you will get ip=2 x 41.5=0.016A
b)Differentiate. you will get conductance(G) = dip/dvpk; G=2 x 1.5 x 4.5 =6mS
Take inverse of G to find R=166.7Ohms
c) Same as a) ip=2 x 101.5=0.063A
d) G=2 x 1.5 x 10.5=9.5mS R= 105Ohm
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.